3 papers
astro-ph.IM2026
Experiments on Settling of Granular and Cohesive Material in Low Gravity
Matthias Keulen, Timo Giese, Kolja Joeris +1
The regolith of rocky bodies, such as planets or asteroids, generally settles under gravity conditions different from those of Earth. The behavior of granular material is not easil…
astro-ph.EP2024
Ultra Low Velocity Ejecta Generated by Slow Impacts on Rubble Pile Asteroids
Kolja Joeris, Laurent Schönau, Matthias Keulen +1
We examine ejecta generated by ultra low velocity impacts under asteroid conditions. In an environment of precisely controlled milligravity and under vacuum, impacts with velocitie…
astro-ph.IM2024
Controlled Partial Gravity Platform for Milligravity in Drop Tower Experiments
Kolja Joeris, Matthias Keulen, Jonathan E. Kollmer
We detail a platform for partial g environment and an experiment for simulated impacts on asteroid surfaces based on it. The partial g environment is created by a two stage approac…